It works well for the purpose of privacy but because of the size of the panel, parts of the panel will show significant darkened areas because of the angle between your eyes and the far left and right of the screen especially if you sit near the screen. The product is not defective per se but this is a matter of geometry and angles on a large screen. As a teacher, it is worth the trade off for me not to let kids see potentially sensitive information but you might find it to be a significant irritation.I included a generic cat picture so you can see the darkening at the edges and decide if it will annoy you.
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